According to the official description, Tudou programs will be upgraded from the original flv format to h.264 format, and the visual effect will be much clearer than before. But users must upgrade Flash Player to the latest version of 9.0.115. In addition, not all videos provide clear versions currently. Only some videos do, such as this one. However, the entire video library of Tudou will turn to clear versions in the future. It is now in the transition phase and will be completed in about a week.